Solid Powder Reactor Agitating Heater Heat Transfer
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Solution Overview
Problem
Conventional solid reactors have inefficiencies in heat transfer rates and reaction speeds due to static material blocks, are not suitable for powders, especially those with attached water, and require complex processes with high equipment investment and production costs.
Innovation Solution
A solid powder reactor design featuring a hollow reaction kettle with an agitating device and heating system that includes a kettle body heater and agitating heater, allowing for direct processing of untreated industrial solid wastes without pressing into blocks, with hollow agitating shafts and blades for enhanced heat transfer and uniform mixing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If material blocks are used in conventional reactors, then the reactor structure is simple, but the heat transfer rate is slow and reaction rate is slow
Solution Approach 1:
The patent applies the dynamics principle by introducing an agitating device that continuously moves and mixes the solid powder materials within the reactor. This transforms the static material blocks of conventional reactors into dynamic, continuously mixed powder suspensions, dramatically improving heat transfer rates and reaction speeds while maintaining structural simplicity through the use of a straightforward agitation mechanism
2Device complexity
If material blocks are used in conventional reactors, then the reactor structure is simple, but the drying rate is slow
Solution Approach 1:
The agitating device continuously moves and fluffs the solid powder materials during the drying phase, preventing compaction and maintaining large surface area exposure to hot dry air. This dynamic mixing action dramatically accelerates moisture evaporation and drying rates compared to static material blocks, reducing the time loss associated with drying operations
3Productivity
If solid powders are ground into fine powders and suspended in aqueous solution, then the reaction can proceed, but the production efficiency is low and production cost is high
Solution Approach 1:
The patent applies parameter changes by operating with solid powder suspensions at much higher solid contents (70-90% or higher) compared to conventional slurry processes (30% solid content). This dramatic parameter change in solid concentration, combined with continuous agitation and direct heating, enables high reaction efficiency while eliminating the need for complex downstream filtration and dehydration equipment, thereby reducing production costs and simplifying the overall process
4Adaptability or versatility
If solid powders with attached water are processed in conventional reactors, then the materials can be processed, but the heat transfer rate is slow
Solution Approach 1:
The continuous agitation action prevents the formation of large, compacted material blocks even when processing powders with attached water. The dynamic mixing keeps materials dispersed and exposed to heating surfaces, maintaining high heat transfer rates throughout the reaction and drying phases, thereby enabling effective processing of water-containing materials without sacrificing thermal efficiency
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design increases heat transfer rates and reaction efficiency by uniformly heating and mixing materials, enabling the processing of powders with attached water and reducing production costs and complexity.
Implementation Method 1
the heating system heats materials inside the reactor
Implementation Method 2
hot dry air is introduced into the reactor
Implementation Method 3
the agitating device is able to uniformly mix the materials in the reaction kettle
Data Source
AI summary
A solid powder reactor includes: a reaction kettle, including a hollow kettle body and covers; an agitating device, including an agitating shaft and blades, wherein the agitating shaft is arranged in the kettle body and the blades are fixed on the agitating shaft; and a heating system, including a kettle body heater and an agitating heater, wherein the kettle body heater is fixed on the kettle body and the agitating heater is arranged on the agitating device. While the agitating device and the kettle body are driven to agitate, by a driving device fixedly arranged outside the reaction kettle, the heating system heats materials in the reactor. The present invention is applicable to solid reaction of solid powders. The materials containing attached water or not are both feasible, and the materials can directly enter the reactor and react. Compared with conventional solid reactors, the present invention increases the production efficiency.